Blackboard Tree vs Finger Cactus

Alstonia scholaris compared with Coryphantha sulcata

Taxonomic Classification

Rank	Blackboard Tree	Finger Cactus
Kingdom same	Plantae (Plants)	Plantae (Plants)
Phylum same	Magnoliophyta (Flowering Plants)	Magnoliophyta (Flowering Plants)
Class same	Magnoliopsida (Dicots)	Magnoliopsida (Dicots)
Order	Gentianales (Gentianales)	Caryophyllales (Caryophyllales)
Family	Apocynaceae	Cactaceae
Genus	Alstonia	Coryphantha
Species	Alstonia scholaris	Coryphantha sulcata

Evolutionary Relationship

Blackboard Tree and Finger Cactus share a common ancestor at the Class level: Magnoliopsida. (Dicots)

Conservation Status

Blackboard Tree

LC — Least Concern

Finger Cactus

LC — Least Concern

Physical Characteristics

Attribute	Blackboard Tree	Finger Cactus
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blackboard Tree

Habitat

Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.

Range

Distributed across Micronesia, Taiwan, and United States.

Finger Cactus

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Blackboard Tree

The Blackboard Tree (Alstonia scholaris) is a species in the genus Alstonia. It is currently classified as Least Concern on the IUCN Red List. Inhabits tropical and subtropical moist broadleaf forests and tropical and subtropical dry broadleaf forests within the Oceanian biogeographic realm.